Adding users with external email addresses

[camusa]

What needs to be done to allow emails to be sent from sharepoint to an external email address when a user is added and the email address is changed. Here's our situation: we have users that don't work for our company so we have created a domain account for them, but not an email address within our domain. When we add their account to a sharepoint site, we are able to enter their email address but when it goes to send the email, it gives us an error. Here's the error:

"The user or users have been added successfully, but there was an error in sending the e-mail message. The server may not be set up correctly to send e-mail. To verify that e-mail is configured correctly, contact your server administrator. "

The emails will send without any issues to a user that has an email address within our domain.

TIA,

Chris

 

[ChaserNL]

Hi,
mabye it is an exchange setting, something about relaying email?

Greetings